Cable-pulling clamp.



W. G. B. EULER.

CABLE PULLING CLAMP.

APPLlcMloN FILED MAR. 21, um.

1,244,043. mmm (m. 1917.

-INVENTQR A TTORNE YSA UNITED STATES PATENT oEEroE. 'i

` WILLIAM G. B. EULER, OF SAN FRANCISCO, GALFORNIA,ASSIGNB 0F ONE-FOURTH T0 FRANCIS W. GAIN, 0F LAS PLUMAS, CALIFORNIA, AND ONEEIGIITH F. BENHAM, 0F ALAMEDA, CALIFORNIA. i

T0 CLAUDE CABLE-Pomme o LAiv'n.

Speclncation o! Letters Patent:

Applicatinn'led Hatch 21, 1917. Serial No. 156,446.

Pulling Clnmps, of which the following isn specification.

M invention relates to n cnble or wirepulllng'chunp` of the type technically known ns n come-nlong." i, r

These devices nre used principally by line men in the construction und repair of electric L runsniission lines, and are. fre uently operated underthe most difficult conditions, as, lfor example, by n lincnmn elingin to the top of n. pole', or sitting or stan ing upon .n '-ro'ssV arm many 'feet above the ground. The ideal clump for `such use is one that is :is light ns is consistent with the ncceury strength, which muy be operated .entirely -by one hund, und which can he tightened upon the wire with comperanA tively little e'ort n.nd when Aso ti htened will establish u. suliicient gri upont 1e wire to picventslipping even un er the greatest strains used in practice.4 In this connection it is well to note that the normal strain. upon* un -aericl power conductor, in the systems using long spans between supports, may :l mount to 3000 pounds or over, nnd'tlntt the pnl] upon c chimp, when Stringing;I or4 rcpniring such' u cable, may rcuch 4000 pounds. The object or' my invention is to provide n clump having the desirable features nientioned above. In addition, my clump is of such construction tlm-t the clampingr effect on the wire does not depend on the pull on the clump, so that the hitter mcy bc loosened, to permit the wire to he slil'ipcd through it, without relieving thel pulling strain.

further advantage ofy my chimp resides in' .the fact that it may be readily. dissocinterll iso for the replnccinent or rep-nir olt iiny of its parts.

lVith these and other objects in View, my invention will now he described in its preerred forni, but it is to be understood that changes, withinthe scope of the claims hereto appended, nniy he made in the forni und construction of? the device without depnrting from the spirit of the invention.

In reading the following description, reference should be hud to the uecoiupnnyiu'g drawings, whereinw Figure. l is n side elevation of my clump attached to c )vile or cable. F ig. 2 is o front elevation of the cliunp, enlarged, showingthe ports in position for application to n.' wire or'euble. Fig. 3 is 1in-end elevation of the chimp :is shown in Fig. 2.

'Figl e is u truusvcrse section, enlarged, token on` the' linie .l-l of Fig. l, the wire being omitted.

In the drawings, the reference numerals 1 and l designate thetwo :idjncent eo-uet- 'ing )uws .of my clump, which 'ure hinged togather :itfone side by a pin 3, passing through adjacent intcrtitting curs 4 und of 'sind Jaws 1 and 2 respectn-'elin The inner.l

:Ence-of scid juws 4nre formed' with (io-acting, eomplelnentnl grooves 6, Figs. 2. 3 und 4,"

parallel with the hinge pin 3, for receiving the wire or cable 7, Fig. Il,v which is to' he clninped. The outerportlons of sind Jnws :im chmnfered,. ns ut S, to permit tlledevlce to be easily slippedover the wire without first spreading the jaws.

The jews 1l und 2 nrc held together, to clump the wire, 'by inenns of u clamping bolt D, ndupted to lie within ulined notches Patented oct; e3, 191i.'

10 und 11 cut in the outer edge portio'ue of the jews 'l'iind L- respectively. The hend l of said holt is swiveled Vupon :L linenlly disposedI pin 1? secure-.dto the outer surface of the jnw uiemlnnt? by :my suitable menus, zu#

for exumple by rivets' 14, ".t und 3.

Suid holt. Jie thus :n.dupted to he .'swung out of the wil-y, ns 'shown in Fig.; l und 3, to

'ierlnit thcgclnunp to he slipped over the wire. hecnd portion of sun] bolt is th resided, :is :it '15, null u clnniping nut 16 is scnewoi'l theremfcr. Suid nut being provided with u bundle l?, nud retained :ign-inst com )lote rerum-'ul from Suid holt, us hy menus o 1 n splitpn 1S.

l'n order to hold the clump onvtlie` wire before the bolt is tightened, I provide springs 1l),V inonnted in suitable sockets` drilled into the jnw 2 from the rear edge thereof` ,the force of seid springs acting, through lineally movable pins 20, against the facce 21 of the hinge lugs 4 of the jew lliin such n manner. es' to hold lseid jaws closed. Thus the operator, ueiingfbut one limi hand, can sli latter seatin rings 19 holding theV 2. A, cable-pulling clamp comprising pair of op iqsing jaws having intcrlittin p the clamp over the wire, the g within the grooves 6; and, the sjaws 1 and 2,olosed, tlie clump remains ou the wire, in any posiing bolt for securin relation, a pivotal bolt and-.one of g said jaws in cla-mpimr` connectlon between sai said jaws, whereby said bolt may be swung clear of the other jaw, and a 50 tion, .while' the operator, with the same handled nut for clamping said bolt.

hand, if necessary, swings the clamping 3. A cable-pulling clamp comprising' a bolt 9 into 'place and tightens the nut 1G. pair of opposing pvotallyconnectedgroove One of the jaws, as for example the jaw ,faced javvis, means for securing the same in 2, is provided with a grooved extension 22 clamping relation, and a connection carried 10 at one end, t-he groove in which continues` by one oilsaid jaws for attachment to a' the grom'e of the jaw. This extension is pulling means, said connection bein'g a arallel with the wire or cable 7, and the cable-supporting extension -of one of the lll-ttor lies in its grooved face. The. extenjaws in line with its grooved face. sion 22- is formed with an eye or socket 23, 4. A' cable-pulling clamp comprising a 60 to which the tackle or other pulling means, pair ofiopposing pivotally connected groove` not shown in the drawings, n'ray be attached. faced j an's having intcrlitting ears, a spring The advantages of 'my clamp will ynow` actuated-pin sliclably seated in one Aof said be more readily appreciated. The parts jaws aiidbe'aring' o'n an ear of the other jaw are all held together, and, as before stated, for; normally holding said jaws together, 65

may be easily applied to the wire with-'one one of said jaws having ay cable-supporting hand, and tightened without the use of enftension in line with its grooved face for special tools. However, by making the pin attachment to a pulling means, a clamp- 3 removable, the entire clamp may be infr bolt for securing saidy jaws in clamping quickly taken apart for the repairI or rerclzation, a pivotal connection between said 25 placement of any of its parts. Moreover bolt and one of said jaws, whereby said bolt the pull bein 'taken by the -lxed lug or exmay be swung clear of the other jaw, and 'a tension 22, the clampingaction upon the handled n ut for clamping said bolt, wire is entirely independent theref,`so that -5. A cable-pulling clamp comprising u the wire may eslippcd thrcughthe clxnp, pair of opposing` connected jaws, a spring 75 .if necessary, wit out relieving the pu lhng\ norma1ly holdingv said jaws together, a stra-in. \elamping bolt for securin said jaws in I claim clamping relation, a pivota connection be- 1. cablepulling clamp comprising a. tween said 'bolt-and one of said jaws, pair o f'oposing jews having Ainterfitting whereby said bolt muy be swung clear of 80 ears pivote-y connected, a 'spring actuated the other jaw,- a handled nut for clampin in s'lidably seated in one of said jaws and said bolt, and a' longitudinally groove euring on the ear of the other jaw for nor` `cable supporting -extension of one of said .mally holding said jaws" together, and jaws for attachment to n pulling means. means for securing said jaws in clamping In testimony whereofl have'signed my 85 40 relation.

name to this specification in the presence of t'wo subscribing wltnesses.

ears ivota y connected, a sprin actuate WILLIAM B in 'dably seatedin one of sui; jaws and Witnees: 5 carin on sneer of the ,other jaw for nor-v WM. F. Boo'rn mally -holding said jaws;

together, a clamp- 

